Recommend paying with Microsoft Points though, if you buy a 4000 point card off eBay for $40, then Assassin's Creed 2 is only $6.40. Also don't know what they're trying to pull with Brotherhood being more expensive than Revelations. Splinter Cell Conviction is also another good buy at $6.40.
Games on Demand
Assassin's Creed - $10(640 MSP)
Assassin's Creed II - $10 (640 MSP)
Assassin's Creed: Brotherhood - $39.95 (2560 MSP)
Assassin's Creed: Revelations - $29.95(1920 MSP)
Prince of Persia (2008) - $19.95 (1280 MSP)
Prince of Persia: The Forgotten Sands - $10 (640 MSP)
Splinter Cell: Conviction - $10 (640 MSP)
Xbox Live Arcade
Babel Rising - 400 MSP (was 800)
Beyond Good & Evil - 400 MSP (was 800)
From Dust - 800 MSP (was 1200)
Mad Riders - 400 MSP (was 800)
Might and Magic: Clash of Heroes - 600 MSP (was 1200)
Outland - 400 MSP (was 800)
Prince of Persia Classic - 400 MSP (was 800)
Rayman 3 HD - 400 MSP (was 800)
Scott Pilgrim - 400 MSP (was 800)
Zeit 2 - 200 MSP (was 800)
Game Add-Ons
Babel Rising - Sky's the Limit - 120 MSP (was 240)
Mad Rising - Zambia Pack - 120 MSP (was 240)
Might & Magic: Clash of Heroes - I Am the Boss - 120 MSP (was 240)
Scott Pilgrim - Knives Chau Add-on - 80 MSP (was 160)
Assassin's Creed II - Sequence 12: Battle of Forli - 160 MSP (was 320)
Assassin's Creed: Brotherhood - The Da Vinci Disappearance - 400 MSP (was 800)
Assassin's Creed: Revelations - Ancestors Character Pack - 160 MSP (was 320)
Assassin's Creed: Revelations - Mediterranean Traveler Map Pack - 400 MSP (was 800)
Assassin's Creed: Revelations - The Lost Archive - 400 MSP (was 800)
Prince of Persia (2008) - Epilogue - 400 MSP (was 800)
Splinter Cell: Conviction - Deniable Ops: Insurgency - 400 MSP (was 800)
Your Shape Fitness Evolved - Bundle: Toned Body and Cardio Boxing Platinum - 280 MSP (was 560)
Any of these arcade games good for 2 player local?